Modern girl Su Wanwan unexpectedly crosses into a 70s novel, becoming a cannon fodder minor female character destined to see her family destroyed and perish. She sees through the schemes of Ma Zhiming and Liu Caixia, protects her parents and brothers, uncovers the truth behind the hidden years-long family background and crime case of the old Su residence, and strives to find a new outlet for making money. Meanwhile, she meets Xie Beishen again, whom she had a secret crush on in her past life. From actively pursuing love to misunderstandings and tug-of-war, the two gradually grow closer amidst repeated confrontations and protection, and Su Wanwan also steps by step rewrites the tragic fate of her entire family.